Home / 130,004.20-195,006.30-115,229.80

Finding the Fourth Proportional to 130,004.20, 195,006.30 and 115,229.80

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Solution

The fourth proportional to 130,004.20, 195,006.30 and 115,229.80 is: 172,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,004.20 : 195,006.30 = 115,229.80 : x
  2. Step 2: Convert to fraction form
    130,004.20/195,006.30 = 115,229.80/x
  3. Step 3: Cross multiply
    130,004.20x = 195,006.30 × 115,229.80
  4. Step 4: Simplify right side
    130,004.20x = 22,470,536,947.74
  5. Step 5: Solve for x
    x = 22,470,536,947.74/130,004.20
  6. Step 6: Final answer
    x = 172,844.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.